US4265619A - Method and apparatus for processing dental models - Google Patents

Method and apparatus for processing dental models Download PDF

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US4265619A
US4265619A US06055502 US5550279A US4265619A US 4265619 A US4265619 A US 4265619A US 06055502 US06055502 US 06055502 US 5550279 A US5550279 A US 5550279A US 4265619 A US4265619 A US 4265619A
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plate
accordance
mounting plate
lower mating
lower
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US06055502
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John L. Lucki
Alan B. Naha
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DENTAL ESSENTIALS Inc
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DENTAL ESSENTIALS Inc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • A61C9/002Means or methods for correctly replacing a dental model, e.g. dowel pins; Dowel pin positioning means or methods

Abstract

A method and apparatus for processing cast models, such as dental molds and for various other applications, which comprises two separate sections, each having on its male and female seating or mating surface an assortment of geometric patterns of various sizes, depths and protrusions, prefabricated as a mating sandwich on which a hardened model, such as of teeth, gum or jaws, can be attached without the manipulation of unhardened moulding compounds, and/or mechanical aids, to obtain a working platform and precision reference apparatus essential in constructing parallel working dies.

Description

BACKGROUND OF THE INVENTION

This invention relates in general to the precision mating of two elements, more particularly, to the making of cast models, such as for the precise fabrication of models of teeth, gums and jaws.

The prior art method for fabricating dental models necessitates the conventional manipulation of a patient's negative impression to ultimately obtain a positive model with removable tooth segments and dies. In prior art practice, many time-consuming steps and much skill is required to manually set various types of pins into the tooth, gum or jaw facsimile. This requires interposing bushings, sleeves or guides into matching holes which are usually incorporated into a base. It is customary to construct the latter at the time the model is poured, using gypsum, epoxy, putty or other moulding materials.

Prior art methods for constructing crowns, inlays, bridges, dentures, etc., either in composite or individually, necessitate the ability to remove each individual segment (tooth-die) from its spatial physical relationship to the remainder of the jaw model for the purpose of constructing accurate margins and contours. In the event that two or more individual units of bridgework are to be joined, either by a one piece casting, solder joint, sticky-wax, coping, or a precision attachment, it is necessary that the working model segments be accurately and repeatedly returned to their original relationships precisely as it or they existed prior to any cutting, separations or disassembly of the jaw model.

In prior art practice, such working models are constructed by the following tedious, inefficient and precious-time consuming steps:

(1) Painstakingly placing a pin, pins, or bushings into or over the negative cavity of the tooth in the impression by "eyeballing" and guaging it with respect to the vertical axis of each adjacent negative tooth cavity while avoiding physical contact with the patient's negative mouth impression or adjacent pins;

(2) Using some method (normally a cross-wire, hot wax, a holding mechanism or other gadget) to "freeze" the pin or sleeve in the position it was placed; and

(3) Pouring liquid gypsum or other setting material into the mold and waiting for it to polymerize, crystalize, set or harden. The so-called "first pour" then hardens thereby imprisoning the pins, sleeves or bushings rigidly, as they were placed or positioned manually, mechanically, visually or otherwise.

(4) After these pins or devices are set rigidly in position by the hardening of the first pour, a releasing, anti-seizing or separating medium must first be carefully coated over the gypsum or whatever was used as a moulding compound. This permits essential future separation, and a second pour is then made.

(5) After the second pour hardens, the working model is removed from the original negative impression, prepared for placement or acceptance on an articulator platform and sectioned. Sectioning facilitates the removal and consequent replacement of the individual dies. On occasion, during their removal, or during efforts to effect separation, the two halves fracture or break apart and the formerly rigid pins either bend, loosen, collapse, or dislodge due to loss of perimeter support.

Common methods presently used in the construction of such models require the skillful and experienced application of judgment in the positioning of pins or guides, either manually or mechanically, the use of unhardened liquid moulding materials, such as for example, gypsum, and the "trial and error" positioning of pins, bushings or dressed models to capture the desired location and parallelism. Therefore, a working time limit and "critical" situation is established. If any step is affected by either judgmental or mechanical error, defective materials such as faulty, nonhomogeneous, or contaminated mixtures, etc., or environmental influences, such as temperature, moisture, or the inadvertent movement, dislodgement or displacement of the pins or guides during pouring, the entire procedure fails. This necessitates the dentist taking a second impression of the patient's teeth, gum, jaw or mouth (a situation professionally embarrassing and uncomplimentary, since it extends extra imposition and inconvenience to the patient, requiring a revisit to the dentist's office).

Whatever methods are in use or utilized in the prior art, the following problems consistantly exist:

(1) "Eyeballing", the use of gadgets, mechanical devices or other apparatus are required on the part of the operator to properly align the reference pins. The methods used are tedious, time consuming, expensive and inefficient.

(2) Unhardened gypsum or other moudling compounds are normally required for the process of securing incorporated male and female "pins" or bushings in preparing models. These systems at best are difficult to control, and are oftentimes nonreversible.

(3) Critical and time-expensive setbacks occur in the nature of such methods, such as difficulty in establishing parallelism of two or more segments, in keeping deep female sections free of often unavoidable foreign debris, not to mention shrinkage, warpage, fusing, the wear of gypsum or other materials which harden during the procedure.

(4) Inadvertent separation of the two adjacent sections may occur in a model thinly held together by virtually only the metal or plastic locating or positioning pins, thereby causing the entire first and second pours to be separated from the impression material.

It is therefore a broad object of this present invention to improve the entire fabrication of cast models, and more particularly of model teeth, gums and jaws.

A more particular object of this invention is to facilitate the removal and precise return of individual segments of a hardened dental casting to its or their original positional relationship, during processing.

Other objects of this invention are to eliminate the tedious and painstaking manipulation of pins, bushings, guides, mechanical aids, or the use of other expedients, such as hot wax, sprues, mechanical holding devices, other gadgets, or the successive pourings of setting materials into the mold for the purpose of securing reference-type aids or elements for the casting.

These and many other objects are realized in the present invention which comprises a prefabricated sandwich which is constructed to accept a cast model such as of teeth, gums and jaws. In preferred form, this sandwich consists of a pair of precision plates including a mounting plate and lower mating plate and into the mating surfaces of which are incorporated a profuse and extended interdigitation of geometric patterns of varying depths and sizes. The hardened model of the jaw is merely glued, fastened or otherwise secured to the mounting plate for processing. The remaining half, or lower mating plate, forms its base.

In accordance with this present invention, the precision plates of the pair are preferably formed so as to be completely interchangeable (any upper mounting plate fitting any lower mating plate). They invariably mate together snugly to provide a fixed registration. Unrestricted compound cuts and required separations may be executed on the cast model clean through the plate section upon which the model is fastened without destroying the segment's replacement accuracy. Since each half or individual plate of the mating sandwich is precisely fabricated by the manufacturers in advance, and constructed of durable materials, they are not subject to technician or operator error. Normal environmental factors such as temperature, humidity, nonhomogeneous gypsum or other moulding mixes, or foreign contaminents in dirty water may no longer be of concern. No pins, bushings, sleeves, drilling or boring by mechanical means and other similar procedures are any longer required in the construction of dies of the types described. The original precision mating fit of the mating plates remains constant throughout the entire working procedure.

After the hardened model of the teeth is secured to the proper surface of the precision mating plates of the present invention, the individual teeth and edentulous areas, if applicable, are sectioned only as far as needed to permit cutting through the mounting plate. The lower mating plate need not be cut or sawed into. In fact, the model, complete with the fastened upper mounting plate, may be lifted clear of the lower mating plate and placed to the side; and separation by cutting or sawing may be carried out in this manner. With the use of this highly versatile device, each and every section is immediately contiguous with each other section; therefore, any quadrant or an entire half a section of the "arch-model", once it's fastened to the mounting half section of the precision mating plates, may be cut through and removed from the line of saw or cutting blade travel if it appears that it will be in the way or an obstacle during the course of starting cuts or separations on the opposite side or section.

All, and any individual segments, quadrants, or half sections can also be removed individually, or simultaneously, as needed, from an entire upper or entire lower dental plate, for trial of a one-piece bridge consisting of two or more units, or for soldering. With prior art methods, this is not as readily or as easily possible. The structure of the present invention also facilitates mounting and repositioning the various elements or composites to articulators. The lower mating plate has a configured geometric pattern and a keyed protuberance incorporated on the underside for engagement by whatever method of fastening, bonding, holding, latching, or clamping that one may elect to utilize. For example, gypsum, plasters, glues, adhesives, or mechanically designed key-ways, clamps, latches or magnetic assisting or adhering devices may be chosen.

In accordance with another feature of the present invention, the precision mating plates may be provided with built-in venting openings to the underside of each of the elements of a pattern to eliminate the inadvertent or sporadic possible trapping of debris inside the geometric patterns which might otherwise prevent their precise seating or joining. As a further feature to facilitate accuracy, the mating plates may be keyed, indexed and/or color coded on their inner and/or outer perimeter edges, so that an immediate visual identification permits placement of appropriate segments or sections to the correct quadrant or location without "trial and error" locating techniques. Also, notchings may be provided around the outer edges in between the two mating plates which may serve to assist in the quick removal and separation of individual sections when needed. A further desirable feature which may be incorporated as part of the combination of the present invention is a slightly extended overhang of adequate cross section located along the outer and inner perimeter of the upper mounting plate that holds the model. This feature not only provides a grasping ledge which permits the operator to avoid excessive fingering of the work die on its critical surface areas, but it also helps avoid rocking or prying adjacent segments off their respective seats.

Applicant's device has a multitude of advantages over prior art methods, gadgets and apparatus available for prefabricating the processing cast models, particularly models of teeth, gums, and jaws. Once any model, be it teeth, gum or jaw section, has been attached or fastened to the mounting plate, individual sections can be promptly cut, removed and worked upon an indefinite number of times and precisely replaced in exact spatial relationship to the other elements of the model as it originally existed, without need for the exercise of constant caution, care and anxiety on the part of the operator, and without the detrimental wear and tear and consequent loss of accuracy due to looseness developing in one or more individual die segments.

Other objects, features and advantages will readily appear to those skilled in the art after a study of the detailed description hereinafter with reference to the attached drawings.

SHORT DESCRIPTION OF DRAWINGS

FIG. 1 shows an articulator including a hardened upper jaw model mounted thereon, and an exploded view of a lower jaw model mounted in accordance with the present invention to include a lower mating plate disengaged from the patterned supporting base of the articulator, and an individual tooth segment disengaged from the geometrically patterned lower mating plate.

FIG. 2 is a perspective view, looking from one side, of the lower jaw model mounted on the articulator with one tooth sector removed from mating relating with the lower mating plate.

FIG. 3 is an inside perspective view, looking down from above, of a lower jaw model in accordance with the present invention, showing a portion of the geometrically patterned lower mating plate with several sectors of individual tooth models removed therefrom.

FIG. 4 are perspective views, respectively from the bottom, side, and top, of an individual tooth sector showing the geometrically shaped projections designed to mate with the exposed portion of the lower mating plate FIG. 3 from which it was removed.

FIG. 5 shows the geometrically patterned underside of a mounting plate, in accordance with the present invention, whose upper surface is constructed for the mounting of a hardened dental model.

FIG. 6 shows the upper surface of a lower mating plate which is geometrically patterned to mate with the mounting plate underside of FIG. 5.

FIG. 7 shows a fragment, a modification of the pattern which may alternatively be employed for the mating surface of either the mounting plate or the lower mating plate.

FIG. 8 shows the underside of the lower mating plate of FIG. 6 which has an alternative pattern designed to mate with a matching pattern on the supporting surface of an articulator.

DETAILED DESCRIPTION OF THE INVENTION

The method and apparatus of the present invention will be described with particular reference to their specific application to the making of dental models, although it will be understood that the principles of the present invention can be applied to the making of many other types of cast models.

The first step in making a dental model is to make an impression of the relevant portions of the patient's tooth, gum or jaw structure. In accordance with well-known prior art procedure, this is carried out by placing a tray of dental impression material in the patient's mouth. When the material has set, the tray is removed. The impression material now shows a negative outline of the subject's teeth, gum, or jaw. Gypsum or other moulding material is then poured into the impression and allowed to harden. The hardened model is then separated from the impression to provide a working model of the patient's teeth, gum or jaw. The patient's model is then attached by suitable bonding means, such as, for example, a cement sold by the DuPont Companies under the trademark DUCO, to a base element which is mounted on an articulator.

The articulator is a device comprising upper and lower mounting platforms which may be connected in a variety of manners on the inside to receive the upper and lower jaw elements and to simulate the relationships or the actual movement or bite of the human jaw.

During the procedure for constructing dental appliances, it is necessary for the dentist, dental technician or operator to be able to remove an individual segment of the model from its spatial relationship with the remainder of the jaw model in order to construct accurate margins and contours, and to replace the removed section to true and precise spatial relationship to the remaining portions of the jaw model. As previously pointed out, the prior art method for doing this involved a tedious procedure in which one or more pins or bushings were positioned in the tooth cavity on which the operator wished to work, perpendicular to the long axis of the model, by visual positioning and held in place by wires, such as bobby pins. After one or more additional pours, the gypsum model could be separated from the impression, and cut at the desired place, so that the tooth model could be removed, worked on, and returned to its proper location. It is apparent that the accuracy and efficiency of this method leaves much to be desired. The repeated removal and replacement of segments tends to erode the original fit and position of the pin so that is precise relationship no longer exists and collective alignment accuracy is no longer possible.

Referring to FIGS. 1-4 of the drawings, the articulator 1, to which casts of the jaws are conventionally attached during the process of preparing false teeth, or bridges, crowns, inlays and the like, has upper and lower supporting platforms 2 and 3 which are arranged to open and close about a hinge 1a.

In FIG. 1, the upper jaw model 4, (which to simplify the description is shown as permanently secured by plastering, but which may alternatively be assembled as taught in accordance with the present invention, and as described hereinafter with reference to the lower jaw model 5) is mounted in a downwardly-projecting manner from the articulator platform 2.

FIG. 1 shows, in exploded view, the lower jaw model 5 which is constructed for mounting on the lower platform 3 of the articulator 1. As shown in the exploded view, the bottom surface of gypsum jaw model 5 is bonded with an adhesive cement, epoxy, or the like, to the substantially plain upper surface of mounting plate 6, forming a rigid bond 8. The lower surface of mounting plate 6, which, in accordance with the present invention is covered with an elaborate and abundant interdigitation of geometric patterns 6a of varying depths and sizes, is constructed to mate with inverse patterns 7a on the upper surface of the lower mating plate 7. The plates 6 and 7 are preferably formed of a suitable blend of injection molding resin, such as, for example, a commercially available formulation of acrylonitrile butadiene styrene, (known as ABS) but can be formed of any rigid thermoplastic material such as a high impact polymer resin which can be permanently molded (preferably by injection molding) to a precision of within approximately one thousandth (0.001) of an inch, has a Rockwell (R) hardness number within the range 75-150, and a flexural modulus (when hardened) within the range 200,000-600,000 p.s.i.g.

It will be understood that, in addition to rigid plastics and rigid polyurethane, other acceptable or suitable thermoplastic or thermosetting materials, such as, but not limited to, an epoxy, acrylic, polyester, nylon, polyacetal, or a thermoset resin such as phenol formaldehyde, can be used for the purposes of the present invention.

The botton surface of 7 may also be embossed and configured with a pattern 7b, which is less elaborate than pattern 7a and which is so formed that it meshes with a pattern 3a on the surface of supporting platform 3. In the presently described embodiment, the supporting platform 3 is engraved on its upper surface 3a with a plurality of radially-directed grooves 3b of triangular cross-section which are constructed to accommodate the projections 7b on the lower surface of lower mating plate 7. If desired, any adequate and acceptable adhesive, suitable bonding method, or mechanical or other suitable securing means may be interposed at this point to retain supporting plate 7 fixed to platform 3. In the present illustrative embodiment, a rubber based solvent contact adhesive has been found suitable.

After the gypsum model 5 has been hardened and bonded to mounting plate 6, and the bond 8 has hardened, one or as many cuts as needed may be made vertically, through the gypsum model 5 and the mounting plate 6 to form isolated segments 5a, which may comprise a single tooth, or which may correspond to a section of jaw, so that the dentist or technician may remove segments such as 5a from the supporting plate 7. Because of the intermeshing geometric patterns 6a and 7a, the segment 5a may be replaced with true precision in the exact location from which it was removed.

It will be understood that the intermeshing patterns 6a-7a may take many different geometric forms and shapes. For example, as shown in FIGS. 1-4 the patterned surface 6a may take the form of a plurality of projections, each projection being slightly frustoconical, say 0.060 inches across the base, and 0.030 inches across the top, and extending out 0.220 inches from the surface, the centers of adjacent projections being separated, by say, 0.200 inches. The mating surface 7a may comprise a plurality of frustoconical recesses separated and shaped to exactly accommodate the projections on 6a. In addition, it is contemplated that the recesses on 7a may be extended through the thickness of 7 forming small perforations in order to facilitate the removal of moulding particles, dirt, debris, or other contaminents which might otherwise collect in the recesses on 7a.

It is contemplated that many different types of geometric patterns might be substituted for the patterns 6a and 7a shown in FIGS. 1-4. For example, alternative intermeshing patterns 6a' and 7a' are shown for the mounting plate 6' and the lower mating plate 7', in FIGS. 5 and 6, respectively. It will be seen that the mating surfaces may comprise a number of different interlocking planes; and the supporting plate 7' and the mounting plate 6' may each comprise projections and recesses which are designed to exactly and precisely mesh with recesses and projections in the corresponding position in the other. For example, in an alternative form shown in fragment in FIG. 7, the plate 7' may include a plurality of frustoconical projections 10 which are designed to protrude into recesses in plage 6'; but these are much shorter than the vertical, downward projections on 6a'.

For convenience in mounting on the articulator, the plates 6' and 7' having intermeshing patterns 6a' and 7a', are each in the shape of an arch, having a maximum width of approximately 21/2 inches from the rounded to the flat end, and an overall width of approximately 27/8 inches across the flat end. The central arched opening is approximately 15/8 inches long to the point of maximum curvature, and approximately 11/8 inches across the flat base.

In addition to the interlocking mating surfaces, the mounting plate 6' and the lower mating plate 7' may include on their matching lateral surfaces indexing lines 11 and 12, as well as discernable color coding to assist the operator in quickly matching portions of the mounting plate and lower mating plate which go together. In addition, one or more lateral notches 13 assist the operator by providing a position at which a prying tool can be inserted to pry the closely mated plates 6' and 7' apart.

As a further feature of the invention, the mounting plate 6 (referring again to FIG. 1) may be dimensioned to be slightly broader in extent in its principal plane than lower mating plate 7, so as to provide a slight overhang 6c of, say, 1/8th inch on one or both ot is lateral inner and outer edges to serve as a finger-nail hold for the operator to facilitate in separating plates 6 and 7 when they are in intermeshed relation.

FIG. 8 shows the opposite side 7b' of the plate 7', which contains an arched-shaped projection, including a pattern of concentric steps 14 which key into the intermesh with a modified form of articulator platform which has a matching arch-shaped depression. The articulator platform surface is designed to be secured or may be bonded to the underside 7b' of lower mating plate 7' for increasing the stability of the assemblage.

It will be understood by those skilled in the art that the present invention facilitates quick removal and precise repositioning of individual sections by means of the mating geometric patterns and grooves, indexing and coding and by the grasping ledge that reduces the necessity of the operator to touch the critical surfaces of the actual die reproduction. In addition, the matching mounting and lower mating plates, which may be used for either maxillary or mandibular jaw models, or both together, are fabricated for quick attachment and removal from the articulator platforms. Further, a single section without a geometric pattern on top can be used for articulator indexing, as required for full dentures. Inasmuch as all prefabricated plate halves are interchangeable, it is possible to mate any upper half containing dies with any other lower half of the same type, at any time. This enables the precise transfer of one set of dies to any number of other articulators without disturbing the original mounted relationship of upper to lower jaws.

Although the invention has been disclosed as specifically applied to dentistry, it will be understood that the principles of the present invention have application in many other fields where the use of a precision mating plate system such as described could be utilized or is dictated.

It will be apparent to those skilled in the art that the present invention is not limited to the specific structures disclosed by way of example, but only by the scope of the appended claims.

Claims (28)

We claim:
1. A device for processing hardened castings of dental models which comprises a prefabricated precision mating combination including:
a mounting plate primarily designed for mounting said hardened castings of dental models, said mounting plate having an upper surface and a lower surface, said upper surface constructed to support said castings in bonded relation thereto, and said lower surface being embossed and configured with a first complex geometric pattern including a plurality of repetitive facets;
a lower mating plate having an upper surface and a lower surface, said upper surface being embossed and configured with a second complex geometric pattern including a plurality of repetitive facets constructed to precisely mate in fixed interlocking registration with the facets of said first geometric pattern when said mounting plate and said lower mating plate are in a preselected spatial relationship, so that the principal planes of said mounting plate and said lower mating plate are locked in substantially parallel relation, whereby said dental castings can be cut and precisely realigned after removal.
2. A device in accordance with claim 1 wherein the lower surface of said lower mating plate is constructed to mate with the platform of an articulator.
3. The combination in accordance with claim 1 wherein the lateral surfaces of said mounting plate and said lower mating plate are marked with corresponding indicia to facilitate orienting them in accordance with said preselected spatial relationship.
4. The combination in accordance with claim 3 wherein said indicia comprise color coding.
5. The combination in accordance with claim 1 wherein said mounting plate is cut into one or more segments, said segments being constructed to be removed from and replaced on said lower mating plate precisely in accordance with said preselected spatial relationship.
6. The combination in accordance with claim 1 wherein the dimensions of said mounting plate are slightly broadened in extent in its principal plane to provide a slight overhang not exceeding about 1/8th of an inch on one or both of its lateral inner and outer edges to serve as a finger-nail hold that permits the operator to gently separate the mounting plate from the mating plate.
7. The combination in accordance with claim 1 wherein said mounting plate and said lower mating plate are formed of a rigid material which is capable of being permanently molded to a tolerance not exceeding about one mil.
8. The combination in accordance with claim 7 wherein said material consists essentially of injection molded high impact polymer which cures to a Rockwell (R) hardness in the range 75 to 150, and has a flexural modulus within the range 200,000 to 600,000 p.s.i.g.
9. The combination in accordance with claim 1 wherein said mounting plate and said lower mating plate are formed of metal.
10. The combination in accordance with claim 1 wherein said mounting plate and said lower mating plate are formed of ceramic.
11. The combination in accordance with claim 1 wherein said mounting plate and said lower mating plate consist essentially of plastic metalized by spraying or coating.
12. A device in accordance with claim 1 wherein said first and second geometric patterns comprise a plurality of perforations to facilitate cleaning and drainage.
13. A system for processing one or more hardened castings for teeth and jaws which comprises in combination:
an articulator comprising upper and lower platforms hingedly connected to simulate the human jaw;
a prefabricated precision molded combination including:
a mounting plate having opposite major surfaces, one said major surface designed to support said castings in bonded relation thereto, and the other said major surface being embossed with a first complex configured geometric pattern having a plurality of repetitive facets;
a lower mating plate having opposite major surfaces, one said major surface being embossed with a second complex configurated geometric pattern having a plurality of repetitive facets constructed to precisely mate with the facets of said first configured geometric pattern in fixed interlocking registration when said mounting plate and said lower mating plate are in a preselected spatial relationship, so that the principal planes of said mounting plate and said lower mating plate are locked in substantially parallel relation;
the other major surface of said lower mating plate being constructed to be supported on one of the platforms of said articulator.
14. A system in accordance with claim 13 wherein said casting and said mounting plate are cut transversely to said major surfaces to form one or more unique segments, and wherein said unique segments are constructed to be removed and replaced in precise spatial relationship to the remaining portions of said casting.
15. A system in accordance with claim 13 wherein the other major surface of said lower mating plate is configured with a third geometric pattern, and at least one platform of said articulator is configured with a fourth geometric pattern which mates with said third geometric pattern when said lower mating plate is mounted on said platform in a preselected spatial relation.
16. A system in accordance with claim 13 wherein the lateral surfaces of said mounting plate and said lower mating plate are marked with corresponding indicia to facilitate orienting them in accordance with said preselected spatial relationship.
17. The system in accordance with claim 16 wherein said indicia comprise color coding.
18. The system in accordance with claim 13 wherein said mounting plate and said lower mating plate are formed of substantially rigid plastic.
19. The combination in accordance with claim 18 wherein said rigid plastic consists essentially of a thermoplastic or thermosetting material selected from the group consisting of epoxy, arcylic, polyester, nylon, polyacetal or a thermoset resin.
20. The combination in accordance with claim 18 wherein said rigid plastic is a thermoset resin consisting essentially of phenol formaledhyde.
21. The system in accordance with claim 13 wherein said mounting plate and said lower mating plate are formed of metal.
22. The system in accordance with claim 13 wherein said mounting plate and said lower mating plate are formed of ceramic.
23. A method for producing and/or processing model teeth and/or jaws which comprises the steps of:
forming a hardened casting in a preselected shape;
attaching said casting to one of the major surfaces of a mounting plate which is one component of a prefabricated precision mating combination comprising said mounting plate and a lower mating plate;
said mounting plate having a first complex configured prefabricated geometric pattern including a plurality of repetitive facets on its opposite major surface;
locking said opposite major surface of said mounting plate in fixed interlocking registration with one surface of said lower mating plate which has a second complex geometric pattern including a plurality of repetitive facets which is constructed to intermesh in precise mating relation with the facets of said first complex configured geometric pattern when said mounting plate and said lower mating plate are disposed in a preselected spatial relationship to form said prefabricated precision mating combination, so that said mounting plate and said lower mating plate are locked with their principal planes in substantially parallel relation, whereby said hardened castings can be cut and precisely realigned after removal.
24. The method in accordance with claim 23 which comprises cutting at least one sector of said casting and said mounting plate along a pair of planes transverse to the principal plane of said mounting plate so that said one sector can be removed and replaced on said lower mating plate in the precise position relative to the other parts of said mold from which it was removed.
25. The method in accordance with claim 23 which comprises:
utilizing an articulator having a prefabricated geometric pattern on at least one platform thereof wherein said lower mating plate has prefabricated on the opposite major surface thereof a pattern which is constructed to mate in intermeshing relation with the pattern on said platform, and mounting said opposite major surface of said lower mating plate in fixed registration with said platform.
26. The method in accordance with claim 23 which comprises coding the lateral edges of said mounting plate and said lower mating plate with matched identifying indicia.
27. The method in accordance with claim 25 which comprises coding the lateral edges of said mounting plate and said lower mating plate with matched color indicia.
28. A device for processing dental models comprising a prefabricated combination for the precision mating of two separate rigid elements in a preselected orientation which comprises:
a first plate having one surface thereof embossed and configured with a first complex geometric pattern having a plurality of repetitive facets, and the opposite surface of said first plate constructed to support said dental models in fixed relation for processing; and
a second plate having one surface thereof embossed and configured with a second complex geometric pattern having a plurality of repetitive facets which is substantially the inverse of said first geometric pattern, wherein the facets of said geometric patterns are constructed to precisely mate in fixed registration when said first and second plates are in a preselected spatial relationship so that the major planes of said first and second plates are disposed in substantially parallel relation whereby said dental models can be cut and precisely realigned after removal.
US06055502 1979-07-09 1979-07-09 Method and apparatus for processing dental models Expired - Lifetime US4265619A (en)

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Application Number Priority Date Filing Date Title
US06055502 US4265619A (en) 1979-07-09 1979-07-09 Method and apparatus for processing dental models
AT80901287T AT17644T (en) 1979-07-09 1980-05-21 Method and apparatus for working dental models.
DE19803071378 DE3071378D1 (en) 1979-07-09 1980-05-21 Method and apparatus for processing dental models
JP50155080A JPH0234616B2 (en) 1979-07-09 1980-05-21 Chuzomokeioshorishitari * sonotashujunoyotonoaruhohooyobisochi
PCT/US1980/000610 WO1981000047A1 (en) 1979-07-09 1980-05-21 Method and apparatus for processing dental models
CA 353353 CA1151854A (en) 1979-07-09 1980-06-04 Method and apparatus for processing cast models and for various other applications
EP19800901287 EP0032146B1 (en) 1979-07-09 1981-01-26 Method and apparatus for processing dental models

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US4265619A true US4265619A (en) 1981-05-05

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EP (1) EP0032146B1 (en)
JP (1) JPH0234616B2 (en)
CA (1) CA1151854A (en)
DE (1) DE3071378D1 (en)
WO (1) WO1981000047A1 (en)

Cited By (79)

* Cited by examiner, † Cited by third party
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US4368042A (en) * 1980-07-11 1983-01-11 Felstead John T Device for use in making a dental replica, and a method of making a dental replica
US4449931A (en) * 1981-03-17 1984-05-22 Kyoto Ceramic Co., Ltd. Tool for making separated tooth model
US4521188A (en) * 1983-10-14 1985-06-04 National Keystone Products Co. Dowel pin for dental models
US4619611A (en) * 1984-07-16 1986-10-28 Henry Shimbashi Dental articulator
US4842242A (en) * 1987-01-30 1989-06-27 Kv33 Corporation Ribbed flexible mold for dental model bases
US4906186A (en) * 1988-10-31 1990-03-06 France Jr Stanley L Template for setting artificial teeth in a denture
US5320527A (en) * 1992-02-03 1994-06-14 Robert Schwartz Dental arch form
US5393227A (en) * 1994-02-25 1995-02-28 Keypro Innovations, Inc. Dental impression handling tool and method
US5403185A (en) * 1991-12-13 1995-04-04 Presswood; Thomas L. Dental articulator
US5658143A (en) * 1995-07-13 1997-08-19 Kuperman; Tal Dental articulator having dowel pins and support pins
US5775899A (en) * 1995-11-01 1998-07-07 Huffman; Ronald E. Dental model base having integral pins
US5957688A (en) * 1996-08-22 1999-09-28 Van Valey; Edwin T. Dental model articulator
US5996963A (en) * 1997-02-14 1999-12-07 Ceramco Inc. Dental casting mold device
US6089863A (en) * 1996-08-22 2000-07-18 Van Valey; Edwin T. Flexible mold and dental model formed therefrom
WO2000041646A1 (en) * 1999-01-15 2000-07-20 Cronin Richard J Dental cast tray assembly
WO2001062181A1 (en) * 2000-02-24 2001-08-30 Garland James K Dental model tray used in forming dental model
US6318999B1 (en) 1999-04-07 2001-11-20 Nu-Tek Dental, Llc Dental articulator
USD452010S1 (en) 2001-01-26 2001-12-11 Ronald E. Huffman Full arch attachment plate
USD452009S1 (en) 2001-01-26 2001-12-11 Ronald E. Huffman Quadrant dental model base having a single row of apertures
USD452319S1 (en) 2001-01-26 2001-12-18 Ronald E. Huffman Quadrant attachment plate
USD452320S1 (en) 2001-01-26 2001-12-18 Ronald E. Huffman Encased stone dental model base
USD452322S1 (en) 2001-02-27 2001-12-18 Ronald E. Huffman Projecting pin dental model base with detachable articulator attachment bar
USD452321S1 (en) 2001-01-26 2001-12-18 Ronald E. Huffman Quadrant dental model base having a double row of apertures
USD452566S1 (en) 2001-01-26 2001-12-25 Ronald E. Huffman Full arch dental model base having a double row of apertures
USD452567S1 (en) 2001-01-26 2001-12-25 Ronald E. Huffman Full arch dental model base having a single row of apertures
USD452568S1 (en) 2001-02-27 2001-12-25 Ronald E. Huffman Projecting pin dental model base
USD456903S1 (en) 2001-05-09 2002-05-07 Ronald E. Huffman Quadrant dental model base with projecting variable height pins
USD456904S1 (en) 2001-05-09 2002-05-07 Ronald E. Huffman Projecting pin quadrant dental model base
USD456902S1 (en) 2001-05-09 2002-05-07 Ronald E. Huffman Hollow body full arch dental model base
USD457243S1 (en) 2001-05-09 2002-05-14 Ronald E. Huffman Solid quadrant winged dental model base
USD457637S1 (en) 2001-05-09 2002-05-21 Ronald E. Huffman Encased stone quadrant, winged dental model base
USD457636S1 (en) 2001-05-09 2002-05-21 Ronald E. Huffman Solid full arch dental model base
USD457964S1 (en) 2001-05-09 2002-05-28 Ronald E. Huffman Full arch dental model base with projecting variable height pins
USD457963S1 (en) 2001-05-09 2002-05-28 Ronald E. Huffman Full arch dental model base with projecting variable height pins and removeable attachment bar
US6402512B1 (en) 1996-08-22 2002-06-11 Edwin T. Van Valey Stabilizing device and method for dental model articulator
US6425759B1 (en) 2000-11-15 2002-07-30 Richard J. Cronin Dental cast tray assembly
US20020102514A1 (en) * 2001-01-26 2002-08-01 Huffman Ronald E. Encased stone dental model base body and method
US6439884B1 (en) 2000-11-15 2002-08-27 Richard J. Cronin Dental cast tray assembly
USD464432S1 (en) 2001-09-28 2002-10-15 Ronald E. Huffman Encased stone dental model base
USD464431S1 (en) 2001-09-28 2002-10-15 Ronald E. Huffman Dental model base having a double row of apertures
USD464733S1 (en) 2001-09-19 2002-10-22 Ronald E. Huffman Dental model base having two rows of pins
USD464732S1 (en) 2001-09-19 2002-10-22 Ronald E. Huffman Dental model base having two rows of stationary pins for random location of teeth
USD465027S1 (en) 2001-09-28 2002-10-29 Ronald Huffman Dental model base having a single row of apertures
US6471513B1 (en) 2001-01-29 2002-10-29 Ronald E. Huffman Dental model base assembly
EP1059068A3 (en) * 1999-06-09 2002-12-04 Gaetano Squicciarini Improved articulator to realise gypsum models
WO2002076322A3 (en) * 2001-03-25 2002-12-27 Langner Jan Gmbh Method for producing and device for separating dental models
US6511318B2 (en) 1999-04-07 2003-01-28 Nu-Tek Dental, Llc Dental articulator
US6513254B1 (en) * 2000-07-13 2003-02-04 Andrew R. Lunn Gutta percha cone gauge
US20030118970A1 (en) * 2001-12-21 2003-06-26 3M Innovative Properties Company Removable dental models
US20030207230A1 (en) * 2001-02-21 2003-11-06 Garland James K Dental model tray used in forming dental model
US6712609B2 (en) * 2002-03-22 2004-03-30 Evgeny Davidov Supporting structure for a dental model and a method for forming thereof
US6780011B2 (en) 2002-03-22 2004-08-24 Evgeny Davidov Dental articulator with extended motion range
US20050064364A1 (en) * 2002-08-07 2005-03-24 Huffman Ronald E. Dental modeling apparatus having magnet controlled adjustment
US6884068B2 (en) 1999-07-07 2005-04-26 Ronald E. Huffman Dental model base configured for customized aperture formation
US6932608B1 (en) 2003-05-21 2005-08-23 Gbase, Inc. Two-piece model and die system
US20060127851A1 (en) * 2004-12-14 2006-06-15 Huafeng Wen Fabricating a base compatible with physical tooth models
US20060127853A1 (en) * 2004-12-14 2006-06-15 Huafeng Wen Base for physical dental arch model
US20060127858A1 (en) * 2004-12-14 2006-06-15 Huafeng Wen Producing accurate base for a dental arch model
US20060172250A1 (en) * 2005-02-03 2006-08-03 Huafeng Wen Inelligent tracking of dental devices
US20060199141A1 (en) * 2005-03-07 2006-09-07 Huafeng Wen Fluid permeable dental aligner
US20060210944A1 (en) * 2002-07-01 2006-09-21 Yunoh Jung Dental modeling and articulating system and method
USD529178S1 (en) 2005-06-10 2006-09-26 Ronald E. Huffman Opposing dental model base
USD529177S1 (en) 2004-11-05 2006-09-26 Ronald E. Huffman Dental model base with a plurality of indexing pins
US20060216667A1 (en) * 2002-07-01 2006-09-28 Yunoh Jung Dental modeling and articulating system and method
USD529614S1 (en) 2005-06-10 2006-10-03 Ronald E. Huffman Opposing dental model base quadrant
USD530014S1 (en) 2004-11-05 2006-10-10 Ronald E. Huffman Dental model base quadrant with a plurality of indexing pins
US20060228666A1 (en) * 2005-04-07 2006-10-12 Qingdao Donghe Denture Manufacturing Co., Ltd. Base assembly for fabrication of false teeth
US20060240374A1 (en) * 2005-04-25 2006-10-26 Huafeng Wen System for organizing dental aligners
US20060281043A1 (en) * 2005-06-10 2006-12-14 Huffman Ronald E Dental modeling assembly and methods
US20070092853A1 (en) * 2005-10-24 2007-04-26 Liu Frank Z Multi-layer casting methods and devices
US20070111155A1 (en) * 2005-11-14 2007-05-17 Kamil Karroum Dental articulator systems and methods
US20070148614A1 (en) * 2002-08-07 2007-06-28 Huffman Ronald E Dental Model Pouring Jig
US20070231770A1 (en) * 2006-03-28 2007-10-04 Huffman Ronald E Dental articulator
US20080206704A1 (en) * 2007-02-23 2008-08-28 Yunoh Jung Dental modeling system with drillable tray base
US20090286196A1 (en) * 2005-04-29 2009-11-19 Align Technology, Inc Treatment of teeth by aligners
US20090298017A1 (en) * 2006-01-20 2009-12-03 3M Innivative Properties Company Digital dentistry
US20100152873A1 (en) * 2006-01-20 2010-06-17 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
KR101456619B1 (en) * 2012-12-05 2014-11-03 주식회사 새길치과기공소 The articurator can be possible manufacturing of the artificial denture teeth optional
US20140356806A1 (en) * 2013-05-30 2014-12-04 Arnold I. Liebman Components, System & Method for Making Dentures in a Single Visit

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FR2558718B1 (en) * 1984-01-30 1986-11-07 Maltese Serge Device for preparing and positioning "dies" interesting all or part of one or both dental arches needed to ensure occluder or articulator, facilitated
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US4368042A (en) * 1980-07-11 1983-01-11 Felstead John T Device for use in making a dental replica, and a method of making a dental replica
US4449931A (en) * 1981-03-17 1984-05-22 Kyoto Ceramic Co., Ltd. Tool for making separated tooth model
US4521188A (en) * 1983-10-14 1985-06-04 National Keystone Products Co. Dowel pin for dental models
US4619611A (en) * 1984-07-16 1986-10-28 Henry Shimbashi Dental articulator
US4842242A (en) * 1987-01-30 1989-06-27 Kv33 Corporation Ribbed flexible mold for dental model bases
US4906186A (en) * 1988-10-31 1990-03-06 France Jr Stanley L Template for setting artificial teeth in a denture
US5403185A (en) * 1991-12-13 1995-04-04 Presswood; Thomas L. Dental articulator
US5320527A (en) * 1992-02-03 1994-06-14 Robert Schwartz Dental arch form
US5393227A (en) * 1994-02-25 1995-02-28 Keypro Innovations, Inc. Dental impression handling tool and method
US5658143A (en) * 1995-07-13 1997-08-19 Kuperman; Tal Dental articulator having dowel pins and support pins
US5775899A (en) * 1995-11-01 1998-07-07 Huffman; Ronald E. Dental model base having integral pins
US6499999B1 (en) 1996-08-22 2002-12-31 Edwin T. Van Valey Dental articulator
US5957688A (en) * 1996-08-22 1999-09-28 Van Valey; Edwin T. Dental model articulator
US6089863A (en) * 1996-08-22 2000-07-18 Van Valey; Edwin T. Flexible mold and dental model formed therefrom
US6402512B1 (en) 1996-08-22 2002-06-11 Edwin T. Van Valey Stabilizing device and method for dental model articulator
US6705864B2 (en) 1996-08-22 2004-03-16 Edwin T. Van Valey Dental articulator
US6773260B2 (en) 1996-08-22 2004-08-10 Edwin T. Van Valey Mold for dental model
US5996963A (en) * 1997-02-14 1999-12-07 Ceramco Inc. Dental casting mold device
US6106284A (en) * 1999-01-15 2000-08-22 Cronin; Richard J. Dental cast tray assembly
WO2000041646A1 (en) * 1999-01-15 2000-07-20 Cronin Richard J Dental cast tray assembly
US6318999B1 (en) 1999-04-07 2001-11-20 Nu-Tek Dental, Llc Dental articulator
US6511318B2 (en) 1999-04-07 2003-01-28 Nu-Tek Dental, Llc Dental articulator
US6485302B2 (en) 1999-04-07 2002-11-26 Nu-Tek Dental, Llc Dental articulator
EP1059068A3 (en) * 1999-06-09 2002-12-04 Gaetano Squicciarini Improved articulator to realise gypsum models
US6884068B2 (en) 1999-07-07 2005-04-26 Ronald E. Huffman Dental model base configured for customized aperture formation
WO2001062181A1 (en) * 2000-02-24 2001-08-30 Garland James K Dental model tray used in forming dental model
US20050191595A1 (en) * 2000-02-24 2005-09-01 Garland James K. Dental model tray used in forming dental model
US7192277B2 (en) * 2000-02-24 2007-03-20 Garland James K Dental model tray used in forming dental model
US6513254B1 (en) * 2000-07-13 2003-02-04 Andrew R. Lunn Gutta percha cone gauge
US6425759B1 (en) 2000-11-15 2002-07-30 Richard J. Cronin Dental cast tray assembly
US6439884B1 (en) 2000-11-15 2002-08-27 Richard J. Cronin Dental cast tray assembly
USD452321S1 (en) 2001-01-26 2001-12-18 Ronald E. Huffman Quadrant dental model base having a double row of apertures
USD452010S1 (en) 2001-01-26 2001-12-11 Ronald E. Huffman Full arch attachment plate
USD452319S1 (en) 2001-01-26 2001-12-18 Ronald E. Huffman Quadrant attachment plate
USD452320S1 (en) 2001-01-26 2001-12-18 Ronald E. Huffman Encased stone dental model base
US7044734B2 (en) 2001-01-26 2006-05-16 Huffman Ronald E Encased stone dental model base body and method
USD452567S1 (en) 2001-01-26 2001-12-25 Ronald E. Huffman Full arch dental model base having a single row of apertures
US20020102514A1 (en) * 2001-01-26 2002-08-01 Huffman Ronald E. Encased stone dental model base body and method
USD452009S1 (en) 2001-01-26 2001-12-11 Ronald E. Huffman Quadrant dental model base having a single row of apertures
USD452566S1 (en) 2001-01-26 2001-12-25 Ronald E. Huffman Full arch dental model base having a double row of apertures
US6471513B1 (en) 2001-01-29 2002-10-29 Ronald E. Huffman Dental model base assembly
US6910888B2 (en) * 2001-02-21 2005-06-28 James K. Garland Dental model tray used in forming dental model
US20030207230A1 (en) * 2001-02-21 2003-11-06 Garland James K Dental model tray used in forming dental model
USD452322S1 (en) 2001-02-27 2001-12-18 Ronald E. Huffman Projecting pin dental model base with detachable articulator attachment bar
USD452568S1 (en) 2001-02-27 2001-12-25 Ronald E. Huffman Projecting pin dental model base
WO2002076322A3 (en) * 2001-03-25 2002-12-27 Langner Jan Gmbh Method for producing and device for separating dental models
USD456902S1 (en) 2001-05-09 2002-05-07 Ronald E. Huffman Hollow body full arch dental model base
USD457963S1 (en) 2001-05-09 2002-05-28 Ronald E. Huffman Full arch dental model base with projecting variable height pins and removeable attachment bar
USD457964S1 (en) 2001-05-09 2002-05-28 Ronald E. Huffman Full arch dental model base with projecting variable height pins
USD457637S1 (en) 2001-05-09 2002-05-21 Ronald E. Huffman Encased stone quadrant, winged dental model base
USD456903S1 (en) 2001-05-09 2002-05-07 Ronald E. Huffman Quadrant dental model base with projecting variable height pins
USD456904S1 (en) 2001-05-09 2002-05-07 Ronald E. Huffman Projecting pin quadrant dental model base
USD457636S1 (en) 2001-05-09 2002-05-21 Ronald E. Huffman Solid full arch dental model base
USD457243S1 (en) 2001-05-09 2002-05-14 Ronald E. Huffman Solid quadrant winged dental model base
USD469537S1 (en) 2001-09-19 2003-01-28 Ronald E. Huffman Dental model base having two rows of stationary pins for random location of teeth
USD481797S1 (en) 2001-09-19 2003-11-04 Ronald E. Huffman Dental model base having two rows of stationary pins for random location of teeth
USD464732S1 (en) 2001-09-19 2002-10-22 Ronald E. Huffman Dental model base having two rows of stationary pins for random location of teeth
USD464733S1 (en) 2001-09-19 2002-10-22 Ronald E. Huffman Dental model base having two rows of pins
USD468432S1 (en) 2001-09-28 2003-01-07 Ronald E. Huffman Dental model base having a single row of apertures
USD468431S1 (en) 2001-09-28 2003-01-07 Ronald E. Huffman Encased stone dental model base
USD464432S1 (en) 2001-09-28 2002-10-15 Ronald E. Huffman Encased stone dental model base
USD464431S1 (en) 2001-09-28 2002-10-15 Ronald E. Huffman Dental model base having a double row of apertures
USD465027S1 (en) 2001-09-28 2002-10-29 Ronald Huffman Dental model base having a single row of apertures
US20030118970A1 (en) * 2001-12-21 2003-06-26 3M Innovative Properties Company Removable dental models
US6780011B2 (en) 2002-03-22 2004-08-24 Evgeny Davidov Dental articulator with extended motion range
US6712609B2 (en) * 2002-03-22 2004-03-30 Evgeny Davidov Supporting structure for a dental model and a method for forming thereof
US20060210944A1 (en) * 2002-07-01 2006-09-21 Yunoh Jung Dental modeling and articulating system and method
US20060216667A1 (en) * 2002-07-01 2006-09-28 Yunoh Jung Dental modeling and articulating system and method
US20050064365A1 (en) * 2002-08-07 2005-03-24 Merchant & Gould P.C. Dental modeling pin locator
US20050064366A1 (en) * 2002-08-07 2005-03-24 Huffman Ronald E. Dental modeling methods
US7347689B2 (en) 2002-08-07 2008-03-25 Huffman Ronald E Dental modeling methods
US20050064364A1 (en) * 2002-08-07 2005-03-24 Huffman Ronald E. Dental modeling apparatus having magnet controlled adjustment
US7341451B2 (en) 2002-08-07 2008-03-11 Huffman Ronald E Dental modeling apparatus
US20080166679A1 (en) * 2002-08-07 2008-07-10 Huffman Ronald E Dental modeling methods
US20070148614A1 (en) * 2002-08-07 2007-06-28 Huffman Ronald E Dental Model Pouring Jig
US6932608B1 (en) 2003-05-21 2005-08-23 Gbase, Inc. Two-piece model and die system
USD529177S1 (en) 2004-11-05 2006-09-26 Ronald E. Huffman Dental model base with a plurality of indexing pins
USD530014S1 (en) 2004-11-05 2006-10-10 Ronald E. Huffman Dental model base quadrant with a plurality of indexing pins
US7922490B2 (en) 2004-12-14 2011-04-12 Align Technology, Inc. Base for physical dental arch model
US20060127858A1 (en) * 2004-12-14 2006-06-15 Huafeng Wen Producing accurate base for a dental arch model
US20060127853A1 (en) * 2004-12-14 2006-06-15 Huafeng Wen Base for physical dental arch model
US8636513B2 (en) * 2004-12-14 2014-01-28 Align Technology, Inc. Fabricating a base compatible with physical tooth models
US20060127851A1 (en) * 2004-12-14 2006-06-15 Huafeng Wen Fabricating a base compatible with physical tooth models
US20060172250A1 (en) * 2005-02-03 2006-08-03 Huafeng Wen Inelligent tracking of dental devices
US8337199B2 (en) 2005-03-07 2012-12-25 Align Technology, Inc. Fluid permeable dental aligner
US20060199141A1 (en) * 2005-03-07 2006-09-07 Huafeng Wen Fluid permeable dental aligner
US20060228666A1 (en) * 2005-04-07 2006-10-12 Qingdao Donghe Denture Manufacturing Co., Ltd. Base assembly for fabrication of false teeth
US7192278B2 (en) * 2005-04-07 2007-03-20 Qingdao Donghe Denture Base assembly for fabrication of false teeth
US20060240374A1 (en) * 2005-04-25 2006-10-26 Huafeng Wen System for organizing dental aligners
US7819659B2 (en) 2005-04-25 2010-10-26 Align Technology, Inc. System for organizing dental aligners
US8740614B2 (en) 2005-04-29 2014-06-03 Align Technology, Inc Treatment of teeth by aligners
US20090286196A1 (en) * 2005-04-29 2009-11-19 Align Technology, Inc Treatment of teeth by aligners
US9939999B2 (en) 2005-04-29 2018-04-10 Align Technology, Inc. Treatment of teeth by aligners
US20060281043A1 (en) * 2005-06-10 2006-12-14 Huffman Ronald E Dental modeling assembly and methods
USD529614S1 (en) 2005-06-10 2006-10-03 Ronald E. Huffman Opposing dental model base quadrant
USD529178S1 (en) 2005-06-10 2006-09-26 Ronald E. Huffman Opposing dental model base
US20070092853A1 (en) * 2005-10-24 2007-04-26 Liu Frank Z Multi-layer casting methods and devices
US20070111155A1 (en) * 2005-11-14 2007-05-17 Kamil Karroum Dental articulator systems and methods
US9208531B2 (en) 2006-01-20 2015-12-08 3M Innovative Properties Company Digital dentistry
US20100152872A1 (en) * 2006-01-20 2010-06-17 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
US20100151410A1 (en) * 2006-01-20 2010-06-17 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
US20100152873A1 (en) * 2006-01-20 2010-06-17 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
US8215956B2 (en) * 2006-01-20 2012-07-10 3M Innovative Properties Company Dental articulator with positioning key
US8262388B2 (en) * 2006-01-20 2012-09-11 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
US20090298017A1 (en) * 2006-01-20 2009-12-03 3M Innivative Properties Company Digital dentistry
US8374714B2 (en) 2006-01-20 2013-02-12 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
US8454365B2 (en) 2006-01-20 2013-06-04 3M Innovative Properties Company Digital dentistry
US20100152871A1 (en) * 2006-01-20 2010-06-17 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
US8738340B2 (en) 2006-01-20 2014-05-27 3M Innovative Properties Company Local enforcement of accuracy in fabricated models
US20070231770A1 (en) * 2006-03-28 2007-10-04 Huffman Ronald E Dental articulator
US7690919B2 (en) 2006-03-28 2010-04-06 Huffman Ronald E Dental articulator
US20080206704A1 (en) * 2007-02-23 2008-08-28 Yunoh Jung Dental modeling system with drillable tray base
KR101456619B1 (en) * 2012-12-05 2014-11-03 주식회사 새길치과기공소 The articurator can be possible manufacturing of the artificial denture teeth optional
US20140356806A1 (en) * 2013-05-30 2014-12-04 Arnold I. Liebman Components, System & Method for Making Dentures in a Single Visit
US9545294B2 (en) * 2013-05-30 2017-01-17 Arnold I. Liebman Components, system and method for making dentures in a single visit

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CA1151854A (en) 1983-08-16 grant
EP0032146A1 (en) 1981-07-22 application
WO1981000047A1 (en) 1981-01-22 application
JPH0234616B2 (en) 1990-08-06 grant
CA1151854A1 (en) grant
JPS56500995A (en) 1981-07-23 application
EP0032146B1 (en) 1986-01-29 grant
EP0032146A4 (en) 1981-11-11 application
DE3071378D1 (en) 1986-03-13 grant

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